Human-Centric Topic Modeling with Goal-Prompted Contrastive Learning and Optimal Transport
- URL: http://arxiv.org/abs/2604.12663v1
- Date: Tue, 14 Apr 2026 12:31:26 GMT
- Title: Human-Centric Topic Modeling with Goal-Prompted Contrastive Learning and Optimal Transport
- Abstract summary: We introduce Human-centric Topic Modeling, emphHuman-TM, a novel task formulation that integrates a human-provided goal directly into the topic modeling process.<n>We show that GCTM-OT outperforms state-of-the-art baselines in topic coherence and diversity while significantly improving alignment with human-provided goals.
- Score: 35.500865939660564
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Existing topic modeling methods, from LDA to recent neural and LLM-based approaches, which focus mainly on statistical coherence, often produce redundant or off-target topics that miss the user's underlying intent. We introduce Human-centric Topic Modeling, \emph{Human-TM}), a novel task formulation that integrates a human-provided goal directly into the topic modeling process to produce interpretable, diverse and goal-oriented topics. To tackle this challenge, we propose the \textbf{G}oal-prompted \textbf{C}ontrastive \textbf{T}opic \textbf{M}odel with \textbf{O}ptimal \textbf{T}ransport (GCTM-OT), which first uses LLM-based prompting to extract goal candidates from documents, then incorporates these into semantic-aware contrastive learning via optimal transport for topic discovery. Experimental results on three public subreddit datasets show that GCTM-OT outperforms state-of-the-art baselines in topic coherence and diversity while significantly improving alignment with human-provided goals, paving the way for more human-centric topic discovery systems.
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